[MLIR] Add llvm (debug) attributes to CAPI (#83992)

This PR adds the following to the mlir c api:

- The disctinct mlir builtin attribute.
- LLVM attributes (mostly debug related ones)

mlir/include/mlir-c/BuiltinAttributes.h

@@ -266,6 +266,10 @@ mlirSymbolRefAttrGetNestedReference(MlirAttribute attr, intptr_t pos);
 /// Returns the typeID of an SymbolRef attribute.
 MLIR_CAPI_EXPORTED MlirTypeID mlirSymbolRefAttrGetTypeID(void);
 
+/// Creates a DisctinctAttr with the referenced attribute.
+MLIR_CAPI_EXPORTED MlirAttribute
+mlirDisctinctAttrCreate(MlirAttribute referencedAttr);
+
 //===----------------------------------------------------------------------===//
 // Flat SymbolRef attribute.
 //===----------------------------------------------------------------------===//

mlir/include/mlir-c/Dialect/LLVM.h

@@ -11,6 +11,7 @@
 #define MLIR_C_DIALECT_LLVM_H
 
 #include "mlir-c/IR.h"
+#include "mlir-c/Support.h"
 
 #ifdef __cplusplus
 extern "C" {
@@ -98,6 +99,236 @@ MLIR_CAPI_EXPORTED MlirLogicalResult
 mlirLLVMStructTypeSetBody(MlirType structType, intptr_t nFieldTypes,
                           MlirType const *fieldTypes, bool isPacked);
 
+enum MlirLLVMCConv {
+  MlirLLVMCConvC = 0,
+  MlirLLVMCConvFast = 8,
+  MlirLLVMCConvCold = 9,
+  MlirLLVMCConvGHC = 10,
+  MlirLLVMCConvHiPE = 11,
+  MlirLLVMCConvAnyReg = 13,
+  MlirLLVMCConvPreserveMost = 14,
+  MlirLLVMCConvPreserveAll = 15,
+  MlirLLVMCConvSwift = 16,
+  MlirLLVMCConvCXX_FAST_TLS = 17,
+  MlirLLVMCConvTail = 18,
+  MlirLLVMCConvCFGuard_Check = 19,
+  MlirLLVMCConvSwiftTail = 20,
+  MlirLLVMCConvX86_StdCall = 64,
+  MlirLLVMCConvX86_FastCall = 65,
+  MlirLLVMCConvARM_APCS = 66,
+  MlirLLVMCConvARM_AAPCS = 67,
+  MlirLLVMCConvARM_AAPCS_VFP = 68,
+  MlirLLVMCConvMSP430_INTR = 69,
+  MlirLLVMCConvX86_ThisCall = 70,
+  MlirLLVMCConvPTX_Kernel = 71,
+  MlirLLVMCConvPTX_Device = 72,
+  MlirLLVMCConvSPIR_FUNC = 75,
+  MlirLLVMCConvSPIR_KERNEL = 76,
+  MlirLLVMCConvIntel_OCL_BI = 77,
+  MlirLLVMCConvX86_64_SysV = 78,
+  MlirLLVMCConvWin64 = 79,
+  MlirLLVMCConvX86_VectorCall = 80,
+  MlirLLVMCConvDUMMY_HHVM = 81,
+  MlirLLVMCConvDUMMY_HHVM_C = 82,
+  MlirLLVMCConvX86_INTR = 83,
+  MlirLLVMCConvAVR_INTR = 84,
+  MlirLLVMCConvAVR_BUILTIN = 86,
+  MlirLLVMCConvAMDGPU_VS = 87,
+  MlirLLVMCConvAMDGPU_GS = 88,
+  MlirLLVMCConvAMDGPU_CS = 90,
+  MlirLLVMCConvAMDGPU_KERNEL = 91,
+  MlirLLVMCConvX86_RegCall = 92,
+  MlirLLVMCConvAMDGPU_HS = 93,
+  MlirLLVMCConvMSP430_BUILTIN = 94,
+  MlirLLVMCConvAMDGPU_LS = 95,
+  MlirLLVMCConvAMDGPU_ES = 96,
+  MlirLLVMCConvAArch64_VectorCall = 97,
+  MlirLLVMCConvAArch64_SVE_VectorCall = 98,
+  MlirLLVMCConvWASM_EmscriptenInvoke = 99,
+  MlirLLVMCConvAMDGPU_Gfx = 100,
+  MlirLLVMCConvM68k_INTR = 101,
+};
+typedef enum MlirLLVMCConv MlirLLVMCConv;
+
+/// Creates a LLVM CConv attribute.
+MLIR_CAPI_EXPORTED MlirAttribute mlirLLVMCConvAttrGet(MlirContext ctx,
+                                                      MlirLLVMCConv cconv);
+
+enum MlirLLVMComdat {
+  MlirLLVMComdatAny = 0,
+  MlirLLVMComdatExactMatch = 1,
+  MlirLLVMComdatLargest = 2,
+  MlirLLVMComdatNoDeduplicate = 3,
+  MlirLLVMComdatSameSize = 4,
+};
+typedef enum MlirLLVMComdat MlirLLVMComdat;
+
+/// Creates a LLVM Comdat attribute.
+MLIR_CAPI_EXPORTED MlirAttribute mlirLLVMComdatAttrGet(MlirContext ctx,
+                                                       MlirLLVMComdat comdat);
+
+enum MlirLLVMLinkage {
+  MlirLLVMLinkagePrivate = 0,
+  MlirLLVMLinkageInternal = 1,
+  MlirLLVMLinkageAvailableExternally = 2,
+  MlirLLVMLinkageLinkonce = 3,
+  MlirLLVMLinkageWeak = 4,
+  MlirLLVMLinkageCommon = 5,
+  MlirLLVMLinkageAppending = 6,
+  MlirLLVMLinkageExternWeak = 7,
+  MlirLLVMLinkageLinkonceODR = 8,
+  MlirLLVMLinkageWeakODR = 9,
+  MlirLLVMLinkageExternal = 10,
+};
+typedef enum MlirLLVMLinkage MlirLLVMLinkage;
+
+/// Creates a LLVM Linkage attribute.
+MLIR_CAPI_EXPORTED MlirAttribute
+mlirLLVMLinkageAttrGet(MlirContext ctx, MlirLLVMLinkage linkage);
+
+/// Creates a LLVM DINullType attribute.
+MLIR_CAPI_EXPORTED MlirAttribute mlirLLVMDINullTypeAttrGet(MlirContext ctx);
+
+/// Creates a LLVM DIExpressionElem attribute.
+MLIR_CAPI_EXPORTED MlirAttribute
+mlirLLVMDIExpressionElemAttrGet(MlirContext ctx, unsigned int opcode,
+                                intptr_t nArguments, uint64_t const *arguments);
+
+/// Creates a LLVM DIExpression attribute.
+MLIR_CAPI_EXPORTED MlirAttribute mlirLLVMDIExpressionAttrGet(
+    MlirContext ctx, intptr_t nOperations, MlirAttribute const *operations);
+
+enum MlirLLVMTypeEncoding {
+  MlirLLVMTypeEncodingAddress = 0x1,
+  MlirLLVMTypeEncodingBoolean = 0x2,
+  MlirLLVMTypeEncodingComplexFloat = 0x31,
+  MlirLLVMTypeEncodingFloatT = 0x4,
+  MlirLLVMTypeEncodingSigned = 0x5,
+  MlirLLVMTypeEncodingSignedChar = 0x6,
+  MlirLLVMTypeEncodingUnsigned = 0x7,
+  MlirLLVMTypeEncodingUnsignedChar = 0x08,
+  MlirLLVMTypeEncodingImaginaryFloat = 0x09,
+  MlirLLVMTypeEncodingPackedDecimal = 0x0a,
+  MlirLLVMTypeEncodingNumericString = 0x0b,
+  MlirLLVMTypeEncodingEdited = 0x0c,
+  MlirLLVMTypeEncodingSignedFixed = 0x0d,
+  MlirLLVMTypeEncodingUnsignedFixed = 0x0e,
+  MlirLLVMTypeEncodingDecimalFloat = 0x0f,
+  MlirLLVMTypeEncodingUTF = 0x10,
+  MlirLLVMTypeEncodingUCS = 0x11,
+  MlirLLVMTypeEncodingASCII = 0x12,
+  MlirLLVMTypeEncodingLoUser = 0x80,
+  MlirLLVMTypeEncodingHiUser = 0xff,
+};
+typedef enum MlirLLVMTypeEncoding MlirLLVMTypeEncoding;
+
+/// Creates a LLVM DIBasicType attribute.
+MLIR_CAPI_EXPORTED MlirAttribute mlirLLVMDIBasicTypeAttrGet(
+    MlirContext ctx, unsigned int tag, MlirAttribute name, uint64_t sizeInBits,
+    MlirLLVMTypeEncoding encoding);
+
+/// Creates a LLVM DICompositeType attribute.
+MLIR_CAPI_EXPORTED MlirAttribute mlirLLVMDICompositeTypeAttrGet(
+    MlirContext ctx, unsigned int tag, MlirAttribute name, MlirAttribute file,
+    uint32_t line, MlirAttribute scope, MlirAttribute baseType, int64_t flags,
+    uint64_t sizeInBits, uint64_t alignInBits, intptr_t nElements,
+    MlirAttribute const *elements);
+
+/// Creates a LLVM DIDerivedType attribute.
+MLIR_CAPI_EXPORTED MlirAttribute mlirLLVMDIDerivedTypeAttrGet(
+    MlirContext ctx, unsigned int tag, MlirAttribute name,
+    MlirAttribute baseType, uint64_t sizeInBits, uint32_t alignInBits,
+    uint64_t offsetInBits);
+
+/// Gets the base type from a LLVM DIDerivedType attribute.
+MLIR_CAPI_EXPORTED MlirAttribute
+mlirLLVMDIDerivedTypeAttrGetBaseType(MlirAttribute diDerivedType);
+
+/// Creates a LLVM DIFileAttr attribute.
+MLIR_CAPI_EXPORTED MlirAttribute mlirLLVMDIFileAttrGet(MlirContext ctx,
+                                                       MlirAttribute name,
+                                                       MlirAttribute directory);
+
+enum MlirLLVMDIEmissionKind {
+  MlirLLVMDIEmissionKindNone = 0,
+  MlirLLVMDIEmissionKindFull = 1,
+  MlirLLVMDIEmissionKindLineTablesOnly = 2,
+  MlirLLVMDIEmissionKindDebugDirectivesOnly = 3,
+};
+typedef enum MlirLLVMDIEmissionKind MlirLLVMDIEmissionKind;
+
+/// Creates a LLVM DICompileUnit attribute.
+MLIR_CAPI_EXPORTED MlirAttribute mlirLLVMDICompileUnitAttrGet(
+    MlirContext ctx, MlirAttribute id, unsigned int sourceLanguage,
+    MlirAttribute file, MlirAttribute producer, bool isOptimized,
+    MlirLLVMDIEmissionKind emissionKind);
+
+/// Creates a LLVM DIFlags attribute.
+MLIR_CAPI_EXPORTED MlirAttribute mlirLLVMDIFlagsAttrGet(MlirContext ctx,
+                                                        uint64_t value);
+
+/// Creates a LLVM DILexicalBlock attribute.
+MLIR_CAPI_EXPORTED MlirAttribute mlirLLVMDILexicalBlockAttrGet(
+    MlirContext ctx, MlirAttribute scope, MlirAttribute file, unsigned int line,
+    unsigned int column);
+
+/// Creates a LLVM DILexicalBlockFile attribute.
+MLIR_CAPI_EXPORTED MlirAttribute mlirLLVMDILexicalBlockFileAttrGet(
+    MlirContext ctx, MlirAttribute scope, MlirAttribute file,
+    unsigned int discriminator);
+
+/// Creates a LLVM DILocalVariableAttr attribute.
+MLIR_CAPI_EXPORTED MlirAttribute mlirLLVMDILocalVariableAttrGet(
+    MlirContext ctx, MlirAttribute scope, MlirAttribute name,
+    MlirAttribute diFile, unsigned int line, unsigned int arg,
+    unsigned int alignInBits, MlirAttribute diType);
+
+/// Creates a LLVM DISubprogramAttr attribute.
+MLIR_CAPI_EXPORTED MlirAttribute mlirLLVMDISubprogramAttrGet(
+    MlirContext ctx, MlirAttribute id, MlirAttribute compileUnit,
+    MlirAttribute scope, MlirAttribute name, MlirAttribute linkageName,
+    MlirAttribute file, unsigned int line, unsigned int scopeLine,
+    uint64_t subprogramFlags, MlirAttribute type);
+
+/// Gets the scope from this DISubprogramAttr.
+MLIR_CAPI_EXPORTED MlirAttribute
+mlirLLVMDISubprogramAttrGetScope(MlirAttribute diSubprogram);
+
+/// Gets the line from this DISubprogramAttr.
+MLIR_CAPI_EXPORTED unsigned int
+mlirLLVMDISubprogramAttrGetLine(MlirAttribute diSubprogram);
+
+/// Gets the scope line from this DISubprogram.
+MLIR_CAPI_EXPORTED unsigned int
+mlirLLVMDISubprogramAttrGetScopeLine(MlirAttribute diSubprogram);
+
+/// Gets the compile unit from this DISubprogram.
+MLIR_CAPI_EXPORTED MlirAttribute
+mlirLLVMDISubprogramAttrGetCompileUnit(MlirAttribute diSubprogram);
+
+/// Gets the file from this DISubprogramAttr.
+MLIR_CAPI_EXPORTED MlirAttribute
+mlirLLVMDISubprogramAttrGetFile(MlirAttribute diSubprogram);
+
+/// Gets the type from this DISubprogramAttr.
+MLIR_CAPI_EXPORTED MlirAttribute
+mlirLLVMDISubprogramAttrGetType(MlirAttribute diSubprogram);
+
+/// Creates a LLVM DISubroutineTypeAttr attribute.
+MLIR_CAPI_EXPORTED MlirAttribute
+mlirLLVMDISubroutineTypeAttrGet(MlirContext ctx, unsigned int callingConvention,
+                                intptr_t nTypes, MlirAttribute const *types);
+
+/// Creates a LLVM DIModuleAttr attribute.
+MLIR_CAPI_EXPORTED MlirAttribute mlirLLVMDIModuleAttrGet(
+    MlirContext ctx, MlirAttribute file, MlirAttribute scope,
+    MlirAttribute name, MlirAttribute configMacros, MlirAttribute includePath,
+    MlirAttribute apinotes, unsigned int line, bool isDecl);
+
+/// Gets the scope of this DIModuleAttr.
+MLIR_CAPI_EXPORTED MlirAttribute
+mlirLLVMDIModuleAttrGetScope(MlirAttribute diModule);
+
 #ifdef __cplusplus
 }
 #endif